RU31139U1 - Construction material combined glued - Google Patents

Description

2002129444

205 g y) g and S i 4

CONSTRUCTION MATERIAL

The proposed technical solution relates to the field of construction, namely, to structural materials for the manufacture of window and door frames, frames, profiles, window sills, wall partitions, building panels and can be used in the construction of windows with double or triple glazing for energy-efficient buildings, buildings of different climatic zones, regions of the North and the Far North.

Known structural material is wooden glued, consisting of a number of layers of lumber lumber, made in the form of sterile elements glued together by a thickness of 1.

The disadvantage of this material is low thermal resistance, insufficiently high heat and sound insulation properties, strength and durability. Through windows made of structural material of wood and especially window frames, the greatest heat loss occurs (up to 30% of the total heat loss of buildings). Wooden window elements are thermal bridges for

class E 04 C 2/00

COMBINED

GLUED

of the building structures, since the relatively high thermal conductivity of the tree and the small geometric dimensions of the cross sections determine their low thermal resistance, which reduces the overall thermal protection of buildings.

The objective of the proposed technical solution is to create a structural material for the manufacture of window and door frames, frames, profiles, window sills, wall partitions, building panels, providing high thermal resistance, heat and sound insulation properties, strength and durability.

The task is achieved in that, according to the proposed technical solution, the structural material combined glued, consisting of a number of layers glued together, is made at least three-layer. Each of its two outer layers is made of structural material, for example, of wood or metal, and at least one of the inner layers is made of rigid polyurethane foam with an absorbent density of at least 200 kg / m or of structural composite filled polyurethane foam with an apparent density not less than 300 kg / m or from slow-burning polyurethane foam.

One of the inner layers is made with a thickness of 10-100 mm.

In the first embodiment, one of the inner layers is made of rigid polyurethane foam with an apparent density of 200-700 kg / m.

In the second embodiment, one of the inner layers is made of structural composite filled polyurethane foam with an apparent density of 300-700 kg / m.

The layers are bonded with, for example, polyurethane adhesive.

The technical solution is illustrated by drawings, where:

FIG. 1-first embodiment of a structural material of combined glued in longitudinal section.

Figure 2 is a second embodiment of a structural material of combined glued in longitudinal section.

Fig.Z-third embodiment of the structural material of the combined glued in longitudinal section.

The structural material combined glued (Fig. 1, the first embodiment) consists of three layers, where each of the two outer 1 and 3 layers is made of wood, the inner 2 layer is made of

rigid polyurethane foam with an apparent density of 200-700.

The combined constructional material (Fig. 2, second embodiment) consists of four layers, where each of the two outer 1 and 3 layers is made of wood, the inner 2 layer is made of rigid polyurethane foam, the inner 4 layer is made of structural composite filled polyurethane foam with each: lean with a density of 300-700 kg./m

The structural material combined glued (Fig. 3 the third embodiment) consists of five layers, where each of the two outer 1 and 3 layers is made of wood, the inner 2 layer is made of rigid polyurethane foam, the inner 4 layer is made of structural composite filled polyurethane foam, the inner 5 layer made of slow-burning polyurethane foam.

The layers are bonded to each other with, for example, polyurethane adhesive, and epoxy adhesive, phenolic resin adhesive, or polyester adhesive can also be used.

One of the inner layers in the layered structural material consists of rigid polyurethane foam, which has lower thermal conductivity and hence greater thermal insulating ability. The strength of polyurethane foam can be increased by recycling it with the addition of organic or inorganic fillers such as paper, cellulose, sawdust, straw, linen, fiberglass, perlite, expanded clay, foam glass and similar mineral-based products. Therefore, in one embodiment of the layered structural material, it is provided that at least one of the inner layers is made of filled polyurethane foam.

Each type of polyurethane foam used is temperature-resistant, easy to process

woodworking machines, glues well with wood and other materials, toxicologically, hygienically, biologically not dangerous, resistant to mold, bacteria, rot.

Window and door frames, frames, profiles, window sills, wall partitions, building panels made of the proposed structural material of the combined glued (wood-polyurethane-wood) have high strength, low thermal conductivity, good heat and sound insulation properties, durability, lower weight while maintaining dimensions beyond due to the implementation of the inner layers of the structural material from any type of polyurethane foam. The heat-insulating properties of structural materials used to date for the manufacture of window frames and window frames, such as wood, metal, plastic, are inferior to the combined structural glued properties of the proposed structural material. For instance,

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a window made of this material does not outwardly differ from traditional wooden while improving performance.

Due to the use of the proposed material, it is possible to obtain a combination of strength properties, for example, wood with heat-insulating properties of polyurethane foam, which is especially important in the case of manufacturing windows for energy-efficient buildings, buildings of the North and Far North regions, which have high requirements for their heat-shielding properties.

Sources of information:

1. RU Utility Model No. 21407, cl. 7 E 04 C 2/00. Deputy Director Institute of NIPT Director of the Research Institute of PF them. A.N. Sevchenko A.G. Kluyko A.F. Chernyavsky

Claims (6)

1. The structural material is combined glued, consisting of a number of layers glued together, characterized in that it is made of at least three layers, each of its two outer layers being made of structural material, for example, wood or metal, and, according to at least one of the inner layers is made of rigid polyurethane foam with an apparent density of at least 200 kg / m ³ or of structural composite filled polyurethane foam with an apparent density of at least 300 kg / m ³ or slow-burning polyurethane foam. 2. The structural material combined glued according to claim 1, characterized in that one of the inner layers is made with a thickness of 10-100 mm 3. The structural composite material glued according to claim 2, characterized in that one of the inner layers is made of rigid polyurethane foam with an apparent density of 200-700 kg / m ³ . 4. The structural composite material glued according to claim 2, characterized in that one of the inner layers is made of structural composite filled polyurethane foam with an apparent density of 300-700 kg / m ³ . 5. The structural composite material glued according to claim 2, characterized in that one of the inner layers is made of slow-burning polyurethane foam. 6. The structural material is combined glued according to claims 2-5, characterized in that the layers are bonded with, for example, polyurethane adhesive.